1#- 2# SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3# 4# Copyright (c) 2018 Emmanuel Vadot <manu@FreeBSD.org> 5# 6# Redistribution and use in source and binary forms, with or without 7# modification, are permitted provided that the following conditions 8# are met: 9# 1. Redistributions of source code must retain the above copyright 10# notice, this list of conditions and the following disclaimer. 11# 2. Redistributions in binary form must reproduce the above copyright 12# notice, this list of conditions and the following disclaimer in the 13# documentation and/or other materials provided with the distribution. 14# 15# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25# SUCH DAMAGE. 26# 27# $FreeBSD$ 28# 29 30#include <sys/bus.h> 31 32INTERFACE pwmbus; 33 34CODE { 35 static int 36 pwm_default_set_flags(device_t dev, int channel, uint32_t flags) 37 { 38 39 return (EOPNOTSUPP); 40 } 41 42 static int 43 pwm_default_get_flags(device_t dev, int channel, uint32_t *flags) 44 { 45 46 *flags = 0; 47 return (0); 48 } 49}; 50 51HEADER { 52 #include <sys/pwm.h> 53}; 54 55# 56# Config the period (Total number of cycle in ns) and 57# the duty (active number of cycle in ns) 58# 59METHOD int channel_config { 60 device_t bus; 61 int channel; 62 unsigned int period; 63 unsigned int duty; 64}; 65 66# 67# Get the period (Total number of cycle in ns) and 68# the duty (active number of cycle in ns) 69# 70METHOD int channel_get_config { 71 device_t bus; 72 int channel; 73 unsigned int *period; 74 unsigned int *duty; 75}; 76 77# 78# Set the flags 79# 80METHOD int channel_set_flags { 81 device_t bus; 82 int channel; 83 uint32_t flags; 84} DEFAULT pwm_default_set_flags; 85 86# 87# Get the flags 88# 89METHOD int channel_get_flags { 90 device_t dev; 91 int channel; 92 uint32_t *flags; 93} DEFAULT pwm_default_get_flags; 94 95# 96# Enable the pwm output 97# 98METHOD int channel_enable { 99 device_t bus; 100 int channel; 101 bool enable; 102}; 103 104# 105# Is the pwm output enabled 106# 107METHOD int channel_is_enabled { 108 device_t bus; 109 int channel; 110 bool *enabled; 111}; 112